Airworthiness Directive · Amendment 39-22988 · Fuselage
The Boeing Company Airplanes
(1) This AD applies to The Boeing Company Model 737-800 series airplanes, certificated in any category, that have been converted to a freighter configuration using Boeing Drawing 800A0003 before April 1, 2021, and are identified as Group A in Section 5.2.1, “Effectivity,” of Boeing 737-800BCF Airworthiness Limitations, D140A006, Revision L, dated April 1, 2021.
Note 1 to paragraph (c)(1): Airplanes with a 737-800BCF designation are Model 737-800 series airplanes that have been converted to a freighter configuration using Boeing Drawing 800A0003.
(2) Installation of Supplemental Type Certificate (STC) ST00830SE does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST00830SE is installed, a “change in product” alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-800 series airplanes. This AD was prompted by a determination that the compliance time for the initial ultrasonic inspection required by AD 2019-11-06 is insufficient for certain airplanes. This AD requires reducing the compliance time for the ultrasonic inspection of the skin under the drag link assembly. The FAA is issuing this AD to address the unsafe condition on these products.
(1) For airplanes identified as Group 1, Configuration 2, 3, 4, or 5, or as Group 5 in Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018: At the compliance time specified in paragraph (g)(1)(i), (ii), (iii), or (iv) of this AD, whichever occurs last, perform an ultrasonic inspection of the skin under the drag link assembly in accordance with the Accomplishment Instructions, Part 2, of Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018. Do all applicable on-condition actions for the Part 2 inspection at the times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018, except where Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018, specifies contacting Boeing for repair instructions, this AD requires doing the repair using a method approved in accordance with paragraph (j) of this AD.
(i) Before the airplane accumulates 17,000 total flight cycles.
(ii) Within 5,000 flight cycles after July 17, 2019 (the effective date of AD 2019-11-06).
(iii) Within 12 months after the effective date of this AD.
(iv) Within 1,000 flight cycles after the effective date of this AD.
(2) For airplanes identified as Group 1, Configuration 1, 3, or 4 in Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018: At the compliance time specified in paragraph (g)(2)(i), (ii), (iii), or (iv) of this AD, whichever occurs last, perform an ultrasonic inspection of the repair tripler under the drag link assembly in accordance with the Accomplishment Instructions, Part 6, of Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018. Do all applicable on-condition actions for the Part 6 inspection at the times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018, except where Boeing Alert Service Bulletin 737-53A1368, dated February 27, 2018, specifies contacting Boeing for repair instructions, this AD requires doing the repair using a method approved in accordance with paragraph (j) of this AD.
(i) Before the airplane accumulates 30,000 total flight cycles.
(ii) Within 5,000 flight cycles after July 17, 2019 (the effective date of AD 2019-11-06).
(iii) Within 12 months after the effective date of this AD.
(iv) Within 1,000 flight cycles after the effective date of this AD.
Accomplishing the actions required by this AD replaces the corresponding initial ultrasonic inspections and on-condition actions required by paragraph (g) of AD 2019-11-06 for Model 737-800 series airplanes converted to a freighter configuration using Boeing Drawing 800A0003 only.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
